Abstract

Vitamin D affects infertility among women. Via vitamin D, were tested in 60 women with infertility and 40 control group. The results showed a low significant elevation in the concentration of Vit. D in infertile women, compared to the healthy women at a significant level of (P = 0.001). The results also showed a significant decrease in the level of the vitamin in infertile women compared with healthy women (control group) at a probability level (P = 0.01) for all age groups, the age is a major factor affecting vitamin D levels, and the elderly are usually more vulnerable to vitamin D deficiency due to the decrease in the skin's production of vitamin D with age and fertility decreases, especially at the age more than of 35 due to the decrease in the egg quantity and quality, as an egg is sent from the ovaries to the female's uterus every month from the time of puberty to menopause. The level of vitamin in infertile women with a regular menstrual cycle is higher compared to infertile women with an irregular menstrual cycle, as this indicates the possibility of vitamin D deficiency, one of the factors that affect the regularity of the cycle of menstruation. This vitamin had a strong positive relationship with Irregular menstruation for different age groups. Finally, the result revealed vitamin D as a new indicator of increasing infertility and miscarriage risk for women.